Set of 8 shower door rollers: consisting of 4 upper rollers and 4 lower rollers, 8 in total; supplied with screws and plastic cover. Suitable for glass shower doors, shower cubicle doors, massage cabin doors or sliding furniture fittings. Shower enclosure roller material: made of brass and ABS plastic, sturdy and durable. Size: the size of the wheel is approx. 23 mm in diameter, 6 mm in width; the maximum glass thickness is 6 mm; The distance from the center of the mounting hole to the edge of the glass is about 18 millimeters. Easy to slide: The bathroom slider is easy to move and install, keeps the door balanced and allows the door to slide with minimal effort. Product Description 4 upper shower door rollers and 4 lower shower door rollers, with plastic cover. A practical fitting for the shower door sliding glass. Material: Brass rod and ABS plastic, sturdy and durable. Roller size: The wheel diameter is about 23 mm, the thickness is about 6 mm; Suitable for glass thickness of 4-6